DMARC Record Generator

Generate official RFC 7489 DMARC (Domain-based Message Authentication, Reporting, and Conformance) DNS TXT records (`v=DMARC1; p=...`). Configure enforcement policies (`p=none`, `p=quarantine`, `p=reject`), alignment modes, and report emails (`rua`, `ruf`).

Why Use This Tool?

• Stop Email Phishing & Spoofing: Instruct receiving mail servers (Gmail, Yahoo, Outlook) how to handle emails failing SPF/DKIM.
• Email Deliverability Compliance: Comply with mandatory 2024 Google and Yahoo bulk sender authentication requirements.
• Aggregate Reporting: Receive daily DMARC aggregate reports (`rua`) monitoring domain email traffic.

How to Use

1. Select Policy Level (`p=none` for monitoring, `p=quarantine` for spam, `p=reject` for blocking).
2. Enter Aggregate Report Email (`rua=mailto:dmarc@yourdomain.com`).
3. Copy the generated DNS TXT record for hostname `_dmarc.yourdomain.com`.

Real Working Example

Input:

Policy: quarantine | Aggregate Email: dmarc-reports@devdeskapp.com | Alignment: Strict

Output Result:

Host: _dmarc.devdeskapp.com
TXT Value: v=DMARC1; p=quarantine; rua=mailto:dmarc-reports@devdeskapp.com; aspf=s; adkim=s;

Important Technical Details & Standards

• RFC 7489 Standard Compliance: Generates valid DMARC tags (`v`, `p`, `sp`, `rua`, `ruf`, `pct`, `aspf`, `adkim`).
• Mandatory Google/Yahoo 2024 Sender Rules: Presets aligned with bulk email sender policies.
• Local Memory Execution: Zero network overhead.

Related Networking & Security Tools

• SPF Record Generator: Generate SPF TXT records.
• DKIM Record Generator: Generate DKIM DNS records.
• Email Header Analyzer: Analyze raw email headers.